public class SearchlastString {
    public static void main(String[] args){
        String str = "Hello World ,Hello Runoob";
        int lastIndex = str.lastIndexOf("Runoob");
        if(lastIndex == -1){
            System.out.println("没有找到字符串Runoob");
        }else{
            System.out.println("Runoob字符串最后出现的位置："+lastIndex);
        }
        }
    }

